Fuser apparatus with release agent delivery system
US5045890A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Apr 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Fuser apparatus for heat fusing toner images to a print substrate has a fuser roll and a pressure roll forming a fusing nip therebetween, a system to deliver liquid release agent to the fuser roll including a movable web having a first side and a second side supported between a web supply roll and a web take-up roll, a housing supporting the supply roll and take-up roll such that one of the supply and take-up rolls is on one side of the fuser roll and the other is on the other side of the fuser roll and the first side of the movable web is in contact with the fuser roll along a path parallel to its longitudinal axis. The movable web is impregnated with a liquid release agent and the movable web, supply roll and take-up roll are reversibly mounted in the housing to deliver liquid release agent to the fuser roll initally from the first side of the movable web followed by reversing the location of the supply roll and take-up roll in the support housing so that the second side of the impregnated web is in contact with the fuser roll to deliver release agent. The movable web is urged into delivery engagement with the fuser roll by an open celled foam pinch roll impregnated with liquid r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.